baber/WOPTO huggingface dataset:
Patent GB-653622-A (GB)
Title: Improvements in or relating to apparatus for feeding or conveying divided solids by means of a screw conveyor
IPC: B65G33/38
Filed: 1947-07-02
Abstract: 653,622. Screw conveyers. WALLACE & TIERNAN CO., Inc. July 2, 1947, No. 17447. Convention date, July 20, 1946. [Class 78 (i)] In a hopper 14 the material is discharged by a feeding apparatus including a screw 13 which is axially reciprocated and rotated only whilst moving in one direction; a continuouslyrotating driving-member 22 and means 16 couples said member to the screw to advance non-rotationally the latter axially in one direction at a speed proportional to the rotation of said member, and returning means 19 adapted to operate at a rate independent of the rate of rotation of said member for rotating the screw and for returning the same axially at a greater speed in the opposite direction. Embodiment.-Screw 13 mounted on shaft 10 and journalled at 11 in walls 12 discharges material from hopper 14 through opening 15. On shaft 11 is thread 16 of the same pitch as screw 13 and which is engaged by the female thread of gear 22, the latter being continually driven from reversible motor 25 and being supported so as to be axially held but rotatably free by thrust bearing 21 also mounted in said wall 12. Spring 19 is fastened at one end to gear 22 and at the other end to member 17 which is fixed on shaft 10 and bears against stop 30. Operation.-Gear 22 is driven anti-clockwise continuously and unidirectionally by motor 25 and performs two operations. Firstly, said gear 22 drives the thread 16 so that screw 13, being held against rotation by stop 30, is advanced bodily and non-rotationally forward. Secondly, since member 17 is fixed, said gear 22 winds up spring 19, the member 17 being at the same time caused to advance with the screw 13 until it slips off stop 30. Then, the spring 19 uncoils and causes member 17 together with shaft 10 fixed thereto to rotate quickly in the anti-clockwise direction. Thread 16 therefore causes shaft 10 to reverse its axial movement and withdraw itself bodily. Screw 13 accordingly returns with a quick movement in the axial direction to its starting point, the movement being both translating and rotational. The screw thus pushes the material forward to discharge it like a piston and then, in its reverse movement, screws itself into the material without displacing the latter. This motion repeats itself and gives a uniform feed in volume per unit of time for materials of different frictional characteristics. There may be a dashpot arranged with arm 17 and stop 30 to absorb shock and the pitch of thread 16 may be longer than that of screw 13.
Patent GB-901007-A (GB)
Title: Improvements in or relating to load-bearing balls
Inventor: TOWNSEND CLAUDE MORTIMER
IPC: B60B33/08
Filed: 1960-05-18
Abstract: 901,007. Rectilinear-motion bearings. AUTOSET (PRODUCTION) Ltd. May 18, 1960, No. 17488/60. Addition to 856,745. Class 12 (1). A bearing of the ball castor type in which the load-carrying ball 7 is supported by smaller balls 13 in an endless track 14 as described in the parent Specification, wherein the partition 16 has an integral spherical neck 17 engaging a central seating 18 of the member 15. The fit between the neck and seating has sufficient clearance to allow slight rocking of the partition 16 so as to provide clearance by the recirculating motion of the balls 13 and for the effect of thrust on the ball 7.
Patent GB-562017-A (GB)
Title: Improvements in or relating to retractable undercarriages for aircraft
IPC: B64C25/20
Filed: 1942-12-09
Abstract: 562,017. Aircraft retractable undercarriages. MESSIER AIRCRAFT EQUIPMENT, Ltd. (formerly Rubery Owen Messier, Ltd.), and CONWAY, H. G. Dec. 9, 1942, No. 17499. [Class 4] An aircraft undercariage is retracted by an electric or other rotary motor through a pair of gears having a varying velocity ratio so as to give an increased mechanical advantage to the motor where maximum effort is required. In one form, a worm 17 on a motor-driven shaft 18 engages a toothed gear 16 of spiral contour so that the maximum mechanical advantage occurs as the undercarriage 11 is raised laterally to its completely retracted position: The bearing 19 for the shaft 18 is laterally displaceable to accommodate the varying radius of the gear 16 either under spring pressure or under control of a cam moving with the leg 11. Fig. 2 shows another form in which two meshing eccentric gears 30, 31 are. mounted respectively on parallel, shafts 29, 25, the latter carrying the undercarriage leg 21. The shaft 29 is driven by worm gear 27, 28. In another form, two non-circular gears are arranged to give maximum mechanical advantage when the leg is partially raised, as is required when the leg is raised . against wind pressure in a fore-and-aft plane..
Patent GB-791965-A (GB)
Title: Improvements in or relating to apparatus for testing the vitality of teeth
Inventor: ZIEGLER EUGENE RUSSELL
IPC: A61C19/04
Filed: 1955-06-17
Abstract: 791,965. Testing the vitality of teeth. RITTER CO., Inc. June 17, 1955, No. 17591/55. Class 81 (2). Apparatus for testing the vitality of teeth comprises a source of highfrequency current, a casing having an external conductor 52 which is grasped by the dentist when applying a terminal 14 to the tooth, and a circuit receiving the high frequency current which circuit is completed by the patient and the dentist, an ionizable gastype lamp 48 being associated with the casing and arranged to light at a predetermined current flow in the circuit. High-frequency current from an impulse generator 15 passes into the casing through a cord assembly 16 which includes wires 55 secured to terminals 56. Leads from the terminals 56 are connected with a flattened helically wound resistance wire 60 which together with a sliding contact 63 carried by a finger-controlled rotatable member 12 forms a potentiometer 41, which is connected with a primary winding 42 of a transformer 43. A secondary winding 44 of the transformer 43 is connected with a capacitor 46 and with a conducting ribbon 52 of nickel chromium alloy which is wound externally of the casing. A detachable diaphanous casing 83 of acrylic plastic contains a neon lamp 48 and a resistor 47 which are mounted in parallel and connected to the terminal 14. A conductor 67 connects a terminal 66 of the capacitor 46 with parallel leads 78 and the lamp 48 and resistor 47. The conducting ribbon 52 serves to earth the circuit through the body of the patient and the dentist.
Patent GB-627813-A (GB)
Title: Improvements in or relating to locks or bolts
IPC: E05B65/08
Filed: 1947-07-05
Abstract: 627,813. Bolts ; locks. BARLOW, C. W., and PALMER, H. O. July 5,1947, No. 17793. [Class 44] Two parts, e.g. window sashes are secured together by a sliding spring shot bolt a mounted in a tubular casing f in one part h and engaging a socket k in the other. A detachable key l may be engaged with the bolt, e.g. by screwing into a threaded socket in the end, whereby the bolt is retracted. A projection g on the bolt slides in a slot b<SP>1</SP> and is adapted on rotation of the bolt to engage in a transverse slot b2 and retain the bolt in the retracted position.
Patent GB-876080-A (GB)
Title: Improvements in or relating to cutter heads for electric hair clippers
IPC: B26B19/06
Filed: 1960-05-20
Abstract: 876,080. Hair clippers. POPP, A., [trading as POPP, METALLWARENFABRIK, A.], and EISEMANN G.m.b.H. May 20, 1960 [May 29, 1959], No. 17807/60. Addition to 854,667. Class 131. In a cutter head for an electric hair clipper having spaced upper and lower cutters as disclosed in the parent Specification, resilient plastic members 6 are interposed between the lower cutter 1 and supports 4, 5 for the guide rod 3 on which the reciprocated upper cutter 10 is guided, the distance between the cutters being adjusted by screws 7 which engage the lower cutter to clamp the supports thereto. The rod 3 is located in the supports 4, 5 and passes through bores 17 in moulded plastic studs 15, 16 which have portions 19, held by elastic deformation in conical holes in the upper cutter and shoulders 20 engaging the upper surface thereof to produce with individual adjustment of the screws 7 a high degree of parallelism between the cutters which is maintained to the limits of the movement of the upper cutter. A moulded plastic cover 21 has projections 22 engaging holes 23, 24 in the supports 4, 5, the holes being conical to ensure a good seating. The point to point distance of the teeth 9 of the upper cutter is twice that of the teeth 8 of the lower cutter.
Patent GB-967914-A (GB)
Title: Improvements in position indicators for movable valve closure members and like closure members
IPC: F16K37/00
Filed: 1963-05-06
Abstract: 967,914. Valves. G. DIKKERS & CO. N.V. May 6, 1963 [May 4, 1962], No. 17837/63. Heading F2V. A valve closure position indicator comprises a lever 5, pivoted at 6, and connected to the valve spindle through a spring 4. The lever also engages a bellows 8 which is filled with liquid and connected to a pressure gauge 10. Movement of the valve spindle rotates the lever 5 through the spring to vary the pressure of liquid in the bellows and the pressure reading on the gauge 10 gives an indication of the position of the valve closure. The bellows may be replaced by a chamber bounded by a diaphragm or piston which is engaged by the lever. A spring may be provided to balance the liquid head in the column 9 between the bellows and gauge.
Patent GB-1459170-A (GB)
Title: Positive resist mask
IPC: G03F7/30
Filed: 1975-04-30
Abstract: 1459170 Resist masks; electron beam exposure INTERNATIONAL BUSINESS MACHINES CORP 30 April 1975 [28 May 1974] 17899/75 Heading G2C A positive resist mask is formed by coating an acrylate polymer layer on to a substrate, exposing imagewise to radiation, e.g. electron beam, to depolymerize the exposed portions, and developing to remove the exposed portions by treatment with methyl isobutyl ketone developer containing 0À5% to 2À2% by volume of water. The acrylate polymer may be methyl, n-butyl or t-butyl methacrylate.
Patent GB-244010-A (GB)
Title: Improvements in pneumatic tyres for vehicles
IPC: B60C19/12
Filed: 1925-07-13
Abstract: 244,010. Maguin, F. July 13, 1925. Jackets and covers.-A puncture-preventing device for insertion between the outer cover a and the air tube c comprises one or more crowned bands d, d<1> of flexible steel, the bands having thin fabric tapes e coated with adhesive material wound round them and the whole being enclosed in a rubber tube g. Fig. 4 shows a device for light vehicles having one band d. For heavier vehicles, bands d, d<1> are placed as shown in Figs. 3 and 5. the rubber covering g being with three sleeves. The butt joints h of the bands d, d<1> and the joint of the covering g are staggered.
Patent GB-426851-A (GB)
Title: Improvements in or relating to outlet valves
IPC: F16K17/12
Filed: 1934-06-18
Abstract: 426,851. Valves. CARLSSON, R., 19, Flemminggatan, Stockhohn. June 18, 1934, No. 18021. [Class 135] An outlet valve for dish-troughs, bath tubs, &c., which acts also as an overflow valve is spring loaded or counterweighted so as to open when the hydrostatic pressure upon it exceeds a certain value, the valve seating being formed as a removable ring encircling the valve. A valve 10 has a stem 12 connected by levers 5, resting on knife-edges 4, to a ring 3 which slides in a cylindrical sluice 1 at the base of the vessel. The ring 3 which forms the valve seating is made heavier than the valve so as to hold the latter closed against the hydrostatic pressure in the vessel up to a predetermined amount. Since the ring 3 rises as the valve opens, slots 18<1> are formed in it for the escape of the liquid in the vessel. The right hand half of the Figure shows a modified ring adapted to ensure quicker closing of the valve when the liquid has fallen to its normal level. When the valve opens it rests against a shoulder 22 on the ring 3 and liquid flows through the slots 181 into chambers 19, 20 and puts additional pressure on the base 21 of the chamber 20. This liquid ultimately escapes through openings 23. The knife edges 4 may be carried by a cup 6 which acts as a valve stem guide and is removable with the valve and seating for cleaning, or the edges 4 may be formed on the base of the sluice. In another modification the ring 3 is normally fixed and the valve 10 loaded by a spring surrounding its stem or acting on the rod 17 of the gear for manually opening the valve. This gear includes a lever 14 engaging a slot in the valve stem. A grating 11 protects the valve from the pressure of any objects placed in the vessel.
Patent GB-624163-A (GB)
Title: Improvements in wheel sets
IPC: B60B37/06
Filed: 1947-07-08
Abstract: 624,163. Wheel sets. LEANDER, A. U. July 8, 1947, No. 18048. Convention date, July 4, 1946. [Class 103 (vi)] In a wheel set for rail vehicles, the axle is formed of a hollow shaft 1 having at each end bell-mounted parts 3 with radially directed outer edges 6. Other bell-mouthed members 8, having cylindrical parts 16 which form bearings, face the ends of the hollow axle 1, 3 and the wheel disc 7 is welded to the outer edges 6, 9 of the bellmouthed parts 3 and 8. The wheel rim 12 may be shrunk on to the disc 7 or may be integral therewith.
Patent GB-935055-A (GB)
Title: Smoking pipe cleansing device
IPC: A24F9/12
Filed: 1962-05-10
Abstract: 935,055. Pipe cleaners. F. MARLAND. May 10, 1962 [March 26, 1962], No. 18051/62. Class 130. A pipe cleaning device comprises a water holding glass vessel 10 having a tubular extension 24 extending radially therefrom and including a steam-water discriminator 34, and a flexible tube 12 for connection to the stem of a pipe 14. The steam-water discriminator 34 is U-shaped and is preferably located halfway along the tube 24, the base of the U being offset by an amount equal to the radius of the vessel 10.
Patent GB-558943-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/32
Filed: 1942-12-19
Abstract: 558,943. Transformers. COLE, Ltd., E. K., and MARTIN, A. W. Dec. 19, 1942, No. 18060. Drawings to Specification. [Class 38 (ii)] The windings of small transformers are insulated by applying between each layer of turns and on the outside of the starting and finishing layers a strip of solid insulation (e.g. synthetic rubber) and subsequently applying heat and pressure to cause the insulation to form a solid homogeneous mass completely surrounding the windings and extending between the turns.
Patent GB-458770-A (GB)
Title: Improvements in or relating to surface high speed craft
IPC: B63B1/28
Filed: 1935-06-25
Abstract: 458,770. Hydroplane vessels. WHITE & CO., Ltd., J. S., East Cowes, and CAREY, H. C., Hampton House, Birmingham Road, Cowes, Isle of Wight. June 25, 1935, No. 18138. [Classes 113 (ii) and 114] Relates to high-speed watercraft in which the hull A<1> is supported by struts F, F', F<2> provided with hydrofoil sets G which extend transversely of the hull. According to the invention, the craft is supported by at least three struts, at least one being situated under the forepart of the vessel and being rotatable about a substantially vertical axis for steering purposes while at least one of the struts is not rotary and is arranged at or under the after part of the craft. In the Figure the pair of rotatable struts F, F are geared with the aft rudder J mounted on the fixed strut F<2>. In a modification, the craft is provided with a pair of fixed struts and a single rotatable strut and mounted aft.
Patent GB-1370450-A (GB)
Title: Sensing apparatus and arrays
IPC: H01L27/105
Filed: 1971-10-25
Abstract: 1370450 Photo-detector arrangement R C A CORPORATION 25 Oct 1971 [26 Oct 1970] 18166/74 Divided out of 1370449 Heading G1A The invention is a modified arrangement of that claimed in Specification 1370449 the parent in which the respective transducer elements are coupled to at least alternate charge storage means by way of switches, and in which means are provided for enabling the switches as desired for the purpose of determining the charges in their associated charge stores as a function of the applied stimuli.
Patent GB-313568-A (GB)
Title: Improvements in oil-immersed x-ray apparatus
IPC: H05G1/04
Filed: 1929-06-13
Abstract: 313,568. Victor X-Ray Corporation, (Assignees of Wantz, J. B.). June 14, 1928, [Convention date]. R÷ntgen-ray apparatus.-In an X-ray installation, the X-ray tube and the energizing apparatus therefor are enclosed in separate oil-tight containers, one of which has outwardly-projecting insulators and contacts which coact with corresponding recessed insulators and contacts on the other to establish the energizing circuits when the containers are clamped together. The A.C. source 10 is connected by the leads 13, 14, 15 to the high-tension transformer 17 and the filament current transformer 20, which are enclosed in the oil-filled container 32. The anode lead 26 and cathode leads 28, 29 from the transformer secondaries are passed at 42, 44 and 43 respectively (Fig. 2) through insulators 40, 41 in the top 33 of the container 32. The X-ray tube 23 is supported in a separate oil-filled container 31 having a device 39 adapted to take up oil expansion. The leads 57, 59, 58 from the tube are passed through insulators 45, 46 in the bottom of the container 31. Thumb nuts 36 and bushings 34 are so disposed that, when fitting the tube container to the container 32, the insulators 45, 46 register with the insulators 40, 41, respectively, spring contacts 50 ensuring a good contact for the low-voltage filament current. For convenience in making connections, the tube 23 may have a screw-on cathode terminal 60. The container 31, Fig. 2, is opaque to X-rays, and has a transparent window; but the container mav be transparent, in which case. the. tube comprises a lead glass bulb with a lime, glass window or is enclosed in a lead glass apertured shield.
Patent GB-421385-A (GB)
Title: Improvements in or relating to the manufacture of articles and goods of or containing rubber
IPC: B29C37/00
Filed: 1934-06-20
Abstract: Rubber articles with wrinkled, corrugated, or grained effects are produced from aqueous dispersions of rubber and the like by coating a backing surface with the dispersion, coagulating it from the inside outwardly, and contacting the outer surface with a swelling agent. The backing surface may be rigid, e.g. a glove former, or may be flexible, e.g. a fabric.  The coagulation may be effected by diffusion outward of a chemical coagulant, or by electrophoresis, or by using an internally heated former for drying the latex, or for use in connection with heat labilized or heat destabilized latex mixings. The swelling agent must be applied within 40 minutes otherwise no wrinkling occurs. Suitable swelling agents are benzene, carbon disulphide, chloroform or carbon tetrachloride.  The coagulant may be applied to a former and the former dipped into latex, or a thin coating of rubber may be first applied to the former to hold the coagulant. In the first case it is preferable to mix some gelatinous material, e.g. clay with the coagulant to enable sufficient of it to adhere to the form.  In an example, a glazed porcelain form was dipped in a usual latex mix, withdrawn at once, air dried for two minutes, dipped in a 1 : 1 solution of glacial acetic acid and 95 per cent alcohol, withdrawn at once, air dried for five minutes, dipped again in the latex mix, left for one minute, withdrawn and allowed to drain for one minute, dipped in a solvent for 1/2 minute and air dried.  Specification 330,970, [Class 70], is referred to.
Patent GB-182362-A (GB)
Abstract: 182,362. Tobias, M. Sept. 2, 1921. Refuse - burning stoves; grates.-A grate for burning sawdust in cooking and other domestic stoves, and of the kind in which the fire-box is arranged in a water-jacket or boiler, comprises the waterjacket a, b in which is a removable bottom grate g having a large opening h through which a poker may be thrust to facilitate combustion. A side recess j forms a flue which, in case the fire becomes choked, prevents back draught by allowing the chimney to exert a draught beneath the grate. A movable plate may cover the perforation h in the grate.
Patent GB-993460-A (GB)
Title: Heavy duty lubricants
IPC: C07F9/04
Filed: 1964-05-01
Abstract: A lubricating oil composition comprises a major proportion of a mineral lubricating oil and minor proportions of each of: (1) an oil-soluble copolymer of a vinyl cyclic amido compound and another copolymerizable organic compound; (2) a complex barium-zinc salt of a sulphonic acid (e.g. one derived from petroleum) and a reaction product of a phosphorus sulphide and an olefin (e.g. polyisobutylene, hexene, a terpene, methyl butene-1 or pentene-2); (3) an oil-soluble divalent metal hydrocarbyl dithiocarbamate; and (4) a Bright Stock. Suitable additives (1) include those derived from substituted (including methoxy) pyrrolidones and piperidones as the amido compound and one or more alkyl acrylates, methacrylates, fumarates or vinyl stearate as the copolymerizable compound.  In one case dodecene-1 is a third comonomer.  Many examples of additives (1)-(4) are given. Optional additives which may also be present include zinc dialkyl dithiophosphates, chlorinated paraffin wax/naphthalene condensation products, amine salts of trichloromethane phosphonic acids, organic sulphides, and the compounds known commercially as "Acryloids."
Patent GB-152781-A (GB)
Title: Electric signs
IPC: G09F13/16
Filed: 1919-07-22
Abstract: 152,781. Smith, F. A. July 22, 1919. Signs; letters, numerals, and the like.-Relates to signs in which a letter or character is defined by a series of shining bodies comprising slightly concave hollow reflectors 2 lit up by shaded lamps 6. The rear of the concave surface is roughened to diffuse light and also provided with a light-reflecting material, the position of this roughened reflecting-surface ensuring protection from harm. The reflectors 2 are preferably of glass with screw-threaded shanks 3 to fit rotatably in ordinary lamp sockets, and are held in positon by rubber gaskets 5.
Patent GB-209121-A (GB)
Title: Improvements in or relating to cultivators and similar agricultural implements
IPC: A01B61/04
Filed: 1922-07-03
Abstract: 209,121. Mote, H July 3, 1922. Implements with adjustable tool frames; lifting tool frames manually; tools, mounting yieldingly.- In implements of the kind in which tines move or vibrato as a result of encountering varying resistances in the soil, the tines are connected in independent pairs in such a way that movement imparted to either tine of a pair in one direction will cause movement of the other tine in the opposite direction. The tines A, B, Fig. 1, are fastened to blocks A<1>, B<1> pivoted on the frame D which may be raised or lowered by means of a lever D<5> on the cranked axle D<4> of the rear wheels D<2>. An arm A<2> on each front block A' is connected by a rod or link C and adjustable spring C<2> to an arm B<2> on a rear block B<1>, the arm A<2> resting against an adjustable abutment C<1> on the rod C. In another form of machine, the tines are mounted in sleeve-like carriers movable on the cranked axle and on a cross-bar at the rear, the arms A<2>, B<2> being connected by a link, with or without a spring. A tine is mounted behind each rear wheel, the odd one being pivotally or rigidly connected to the rear eross-bar, or connected to a front tine in conjunction with the next rear tine, or merely connected to the next rear tine to move with it. In the arrangement shown in Fig. 5, the rear tine B is extended forward beyond its pivot and pivotally connected to the front tine A. In another arrangement, the tines A, Bare pivoted on the same shaft D<x>, Fig. 7, and linked at their forward ends to a centrally pivoted lever C. In another, the pivoted tines are connected to arms C<1>, Fig. 8, on a sleeve C angularly movable on a shaft D<x>. The connecting- rods A<2>, B<2>, Fig. 8, may be telescopic and provided with springs. According to the Provisional Specification, the tines may be connected in sets or series instead of pairs.